MailerZ Blog
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Email Aliases
Pause the leaked local-part. Leave the inbox and its MX alone. Hold catch-all. Issue a replacement alias and prove both sides of the cut.
disable leaked email alias
Read the guideTroubleshooting & SMTP Codes
email support troubleshooting evidence: one MX set, leftover hosts gone, Gmail or Outlook as the store.
email support troubleshooting evidence
Read the guideSecurity & Abuse
Cut the name, not Gmail. No MX flap. No catch-all watch mode.
email alias abuse
Read the guideDeveloper & Website SMTP
One event, one message. Count caps. Do not warm up a user dump.
app notification smtp custom domain
Read the guideSMTP Send-as
Keep Gmail as the store. Prove inbound. Upgrade off Free. Copy the dashboard SMTP pair. The received From must be the alias.
send email from domain without mailbox
Read the guideBuyer Guides & Decision
Fit the hop. Decline misfit jobs. Probe is the review.
mailerz review
Read the guideMigrations
One inbound owner. Turn Routing off. Screenshot is rollback, not a backup MX row.
cloudflare email routing migration
Read the guideBusiness Role Addresses
Print billing@. Keep Gmail. Do not buy a seat for an invoice noun.
billing email alias
Read the guideDNS & MX
Pretty MX panels lie. Two resolvers, one owner, then an external probe. Demoting old hosts is not deletion.
mx record troubleshooting
Read the guideSecurity & Abuse
The hop is a new trustee. Verify the domain. HOLD unknowns. Rotate secrets. Do not rewrite From.
email forwarding security
Read the guideSPF DKIM DMARC SRS ARC
Envelope SRS is allowed. Rewriting Header From breaks DKIM and DMARC.
dkim email forwarding
Read the guideEmail Forwarding Fundamentals
Forwarding keeps Gmail or Outlook as the store. Hosting replaces that store. Pick from jobs you can test, then prove inbound before you cut MX.
email forwarding vs email hosting
Read the guideMigrations
registrar email forwarding migration: one MX set, leftover hosts gone, Gmail or Outlook as the store.
registrar email forwarding migration
Read the guideDeliverability & Spam
Walk MX, identity, hop, then filters. A pretty DNS screenshot is not placement. MailerZ has no inbox SLA.
why forwarded email goes to spam
Read the guideSecurity & Abuse
smtp credential security: one MX set, leftover hosts gone, Gmail or Outlook as the store.
smtp credential security
Read the guideBusiness Role Addresses
The internet remembers hello@. It does not attend your reorg.
stable business email address routing
Read the guideDNS Provider Guides
dkim selector lookup: one MX set, leftover hosts gone, Gmail or Outlook as the store.
dkim selector lookup
Read the guideEmail Aliases
Name the roles. Create those aliases. Prove them from another mailbox. Catch-all is not a naming strategy. Free has three aliases.
email alias naming strategy
Read the guideDeveloper & Website SMTP
smtp server alerts: one MX set, leftover hosts gone, Gmail or Outlook as the store.
smtp server alerts
Read the guideTroubleshooting & SMTP Codes
smtp 551 552 553 554: one MX set, leftover hosts gone, Gmail or Outlook as the store.
smtp 551 552 553 554
Read the guideCost & Workspace Alternatives
Seats are people. Aliases are printed addresses. Keep Gmail, route hello@ and billing@, and do not buy a Workspace user to host a local-part.
google workspace alternative custom domain email
Read the guideMigrations
The wait happens before the cut. Dual MX is not a TTL strategy.
lower ttl email migration
Read the guideDNS Provider Guides
Advanced DNS. Exclusive MX. Email product leftovers are leftover MX.
email forwarding namecheap dns
Read the guidePersonal Domains
Need a name you still own next year? Custom domain. Need a mask per website? A privacy service.
custom domain alias vs privacy alias
Read the guideBusiness Role Addresses
Departments are rows. People are seats. Catch-all is not a department plan.
department email aliases
Read the guide